49161191 has 2 divisors, whose sum is σ = 49161192. Its totient is φ = 49161190.

The previous prime is 49161139. The next prime is 49161239. The reversal of 49161191 is 19116194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49161191 - 2¹⁸ = 48899047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49161121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24580595 + 24580596.

It is an arithmetic number, because the mean of its divisors is an integer number (24580596).

Almost surely, 2^49161191 is an apocalyptic number.

49161191 is a deficient number, since it is larger than the sum of its proper divisors (1).

49161191 is an equidigital number, since it uses as much as digits as its factorization.

49161191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 32.

The square root of 49161191 is about 7011.5041895445. The cubic root of 49161191 is about 366.3313883742.

The spelling of 49161191 in words is "forty-nine million, one hundred sixty-one thousand, one hundred ninety-one".